Abstract:In this paper, an original three-dimensional (3-D) indoor positioning system based on visible light communication (VLC) applying artificial bee colony (ABC) algorithm is proposed. ABC algorithm is an intelligent optimization algorithm that simulates swarm behavior, which has the advantages of pure principle, fewer control parameters, easy implementation, and strong global optimization ability. In the field of visible light positioning, some positioning systems that realize visible light positioning are based on a two-dimensional (2-D) plane, which is not applicable to actual scenarios. However, the ABC algorithm used in visible light positioning system can easily achieve real three-dimensional positioning with accuracy up to the millimeter level. Simulation results show that the average positioning error can reach about 2.6mm after 40 iterations at 1m height and the simulation considers the edge points. The result of track tracking simulation shows that the average error is 1.7mm and 90.4% of the sampling points have a positioning accuracy below 3.811mm. In addition, the convergence performance simulation shows that the average error can reach 3.8mm within 40 iterations under the SNR of 30dB, and the final average error is stable at 2.6mm. From the results, it turns out that the ABC algorithm is a promising method for indoor visible light localization.

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	1. A high-precision 3-D indoor positioning system based on artificial bee colony algorithm
	CHEN Wenxing,ZHANG Junyi
	Electrics, Communication and Autocontrol Technology 11 March 2020
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	Abstract:In this paper, an original three-dimensional (3-D) indoor positioning system based on visible light communication (VLC) applying artificial bee colony (ABC) algorithm is proposed. ABC algorithm is an intelligent optimization algorithm that simulates swarm behavior, which has the advantages of pure principle, fewer control parameters, easy implementation, and strong global optimization ability. In the field of visible light positioning, some positioning systems that realize visible light positioning are based on a two-dimensional (2-D) plane, which is not applicable to actual scenarios. However, the ABC algorithm used in visible light positioning system can easily achieve real three-dimensional positioning with accuracy up to the millimeter level. Simulation results show that the average positioning error can reach about 2.6mm after 40 iterations at 1m height and the simulation considers the edge points. The result of track tracking simulation shows that the average error is 1.7mm and 90.4% of the sampling points have a positioning accuracy below 3.811mm. In addition, the convergence performance simulation shows that the average error can reach 3.8mm within 40 iterations under the SNR of 30dB, and the final average error is stable at 2.6mm. From the results, it turns out that the ABC algorithm is a promising method for indoor visible light localization.
	TO cite this article:CHEN Wenxing,ZHANG Junyi. A high-precision 3-D indoor positioning system based on artificial bee colony algorithm[OL].[11 March 2020] http://en.paper.edu.cn/en_releasepaper/content/4751152


	2. The study of an integral method of health states for voluntary college students
	PENG Jianrong,YU Junsheng,GUO Jinglin
	Electrics, Communication and Autocontrol Technology 10 March 2020
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	Abstract: An integral method for studying the health states is presented based on the random matrix theory and the classification theory of health states. The pulse of volunteer is labeled by the state 1,2,3,4 respectively, then the single-ring theorem is used to analyze the spectral distribution and mean spectral radius of the pulse, and the health state is obtained. The pulse data of 23 voluntary college students were processed, it has been found that the mean spectral radius of pulse approaches the smallest when the states are both disordered in physical and unbalanced in mental states which is named the state 3.
	TO cite this article:PENG Jianrong,YU Junsheng,GUO Jinglin. The study of an integral method of health states for voluntary college students[OL].[10 March 2020] http://en.paper.edu.cn/en_releasepaper/content/4751133

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	3. A Modified Sub-cluster Head Stable Clustering Algorithm for Highly Dynamic Unmanned Aerial Vehicles
	Guo Yuchen,Zhang Xu
	Electrics, Communication and Autocontrol Technology 08 March 2020
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	Abstract:In the UAV network, high-speed movement of nodes will cause frequent network topology updates, making network management more complex and increasing network maintenance overhead. Clustering can increase network capacity, achieve reuse of space resources, and reduce energy consumption overhead. The existing clustering algorithms are proposed for fixed wireless sensor network, mobile ad hoc network with limited mobility or special application such as vehicle network. It is necessary to continue doing the research that could cope with the rapid changes of the network extension caused by the high-speed movement for the UAV.This paper proposes a modified sub-cluster head stable clustering algorithm (SHSC) for highly dynamic unmanned aerial vehicles, which introduces an improved maximum speed similarity parameter when electing a cluster head, so that nodes with similar motion trends are formed the same cluster. The sub-cluster head node is added in each cluster, and becomes a new cluster head immediately when the original cluster head fails or the energy is too low. It is benefit for enhancing the stability of the network. By simulating verification, SHSC is 27% higher than weighted clustering algorithm (WCA) in terms of energy consumption, 22% higher than improved weighted clustering algorithm (IWCA), and 5% higher than optimized stable clustering algorithm (OSCA). In terms of network stability, it is 26% higher than WCA, 22% higher than IWCA, and 19% higher than OSCA.
	TO cite this article:Guo Yuchen,Zhang Xu. A Modified Sub-cluster Head Stable Clustering Algorithm for Highly Dynamic Unmanned Aerial Vehicles[OL].[ 8 March 2020] http://en.paper.edu.cn/en_releasepaper/content/4751103


	4. Target Parameters Estimation of Frequency Diverse Array based on Preprocessing l1-SVD Algorithm
	Liao Yanping,Pan Yue
	Electrics, Communication and Autocontrol Technology 04 March 2020
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	Abstract:Due to too much data, the efficiency of l1 norm-Singular Value Decomposition (l1-SVD) algorithm becomes poor, this paper proposes a Preprocessing l1-SVD algorithm. This method is based on the frequency diversity array of L-type array. Firstly, the search space of the target position is preprocessed to reduce the search space by the inner product of the received data and the perception matrix. Then, l1-SVD algorithm is used to estimate the search space after proposed preprocessing. The simulation results show that the algorithm has better efficiency in the face of large amount of data, and the estimation accuracy is also improved compared with that without processing.
	TO cite this article:Liao Yanping,Pan Yue. Target Parameters Estimation of Frequency Diverse Array based on Preprocessing l1-SVD Algorithm[OL].[ 4 March 2020] http://en.paper.edu.cn/en_releasepaper/content/4751024


	5. Observer-based H∞ Event-triggered Control for Piecewise Affine Systems
	JIANG Yong-Hao,WU wei,WU wei
	Electrics, Communication and Autocontrol Technology 13 January 2020
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	Abstract:This paper investigates output-based H∞ event-triggered control for piecewise affine systems. Firstly, to cope with the situation that the system states are not completely measurable, an observer is designed. Then based on the observer and the system output, an event-triggering mechanism as well as the feedback controller are proposed. The output space partition of the piecewise affine system is approximated by degenerate ellipsoids. Based on the piecewise Lyapunov function, the co-design problem of the observer, the controller and the event-triggering rule is transformed into an LMI-based sufficient condition. The observer and the controller can be obtained by solving a set of LMIs. The stability of the closed-loop system is guaranteed and meanwhile the number of the transmission can be significantly reduced. Finally, a numerical example is provided to illustrate the effectiveness of the proposed approach.
	TO cite this article:JIANG Yong-Hao,WU wei,WU wei. Observer-based H∞ Event-triggered Control for Piecewise Affine Systems[OL].[13 January 2020] http://en.paper.edu.cn/en_releasepaper/content/4750414


	6. 3D visualization application of ocean temperature field
	ZHOU Zhongyuan,ZHOU Weidong
	Electrics, Communication and Autocontrol Technology 11 January 2020
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	Abstract:Sea water temperature is a physical quantity that represents the thermal state of the ocean. Depending on the state of the ocean thermal budget and time, the ocean temperature field will periodically or irregularly change with time. Current research on ocean temperature fields is mainly focused on marine fishing, aquaculture, etc., or research on specific sampling and reconstruction methods of sea temperature. From the perspective of the practical application of underwater vehicle equipment, this paper studies the display method of ocean temperature field data. Compared with the current device that displays the temperature field information change pattern by curve values, the three-dimensional visualization method can more intuitively and effectively describe and describe the current state of the temperature field environment in the sea area, and improve the commander's understanding and application of the temperature field as a whole Making tactical decisions provides reliable technical support, so it has broad prospects in practical engineering equipment applications. This paper analyzes the seawater temperature field data characteristics and sampling methods, uses ray projection volume rendering method to realize three-dimensional display of the ocean temperature field, and encodes data classification, coordinate conversion, and resampling specific processes.
	TO cite this article:ZHOU Zhongyuan,ZHOU Weidong. 3D visualization application of ocean temperature field[OL].[11 January 2020] http://en.paper.edu.cn/en_releasepaper/content/4750518


	7. Accurate ZigBee Wireless Sensor Indoor Localization System Based on PSO Algorithm
	ZHENG Ming,LIU Ming-Xin,LI Bei-Ming,XUE Wei
	Electrics, Communication and Autocontrol Technology 06 September 2019
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	Abstract:This paper targets to estimate the distance between the blind node whose position is ambiguous in wireless sensor network and the anchor node whose position is known.And then,estimate location of the blind node according to the geometric relationship among nodes in indoor environments. an approach was used to estimate such a distance. The channel propagation model in indoor environments accord with log-normal shadowing model(LNSM),approach used PSO(Particle Swarm Optimization)) algorithm to improve LNSM model and estimates the distance according to improved LNSM and received signal strength indicator(RSSI).Then constructed a equation Based on the geometric relationship among nodes,solved the equation used Swarm intelligence algorithm,got best estimate of blind node' position. the approach achieved a mean absolute error less than 0.5m in a 10×10 Square test site.
	TO cite this article:ZHENG Ming,LIU Ming-Xin,LI Bei-Ming, et al. Accurate ZigBee Wireless Sensor Indoor Localization System Based on PSO Algorithm[OL].[ 6 September 2019] http://en.paper.edu.cn/en_releasepaper/content/4749584


	8. A hybrid model for seam-carving and JPEG compression operation chain detection
	BIN Muyu,YANG Gaobo,DONG Xiaoxu
	Electrics, Communication and Autocontrol Technology 22 April 2019
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	Abstract:Seam carving, which is known as content-aware image resizing, leaves no visible traces in resized images. Though several approaches have been presented for seam carving forgery detection, there are few works about the operation chain detection of both seam carving and JPEG compression. In this paper, a hybrid model is proposed to distinguish JPEG-Seam carving-JPEG images from single and double compression JPEG images. Both spatial-domain and transform-domain features are extracted for operation chain detection. Experiment results show that the proposed approach can efficiently detect seam carving operation.
	TO cite this article:BIN Muyu,YANG Gaobo,DONG Xiaoxu. A hybrid model for seam-carving and JPEG compression operation chain detection[OL].[22 April 2019] http://en.paper.edu.cn/en_releasepaper/content/4748494


	9. Impact of potential barriers on soliton spectral tunneling in photonic crystal fiber
	LUO Yu-Pei,YANG Hua
	Electrics, Communication and Autocontrol Technology 15 April 2019
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	Abstract:The paper reports the observation of the potential barriers’ influences on soliton spectral tunneling (SST) in photonics crystal fibers (PCFs) with three zero-dispersion wavelengths (ZDWs). The numerical simulations show that the generation of SST can be controlled well by regulating the parameters of the PCFs. Furthermore, the wave band and location of the switched solitons’ appearance can be controlled by adjusting the position of ZDWs. In addition, the leakage dispersive wave appears during this numerical simulations. This paper illustrate a new understanding of SST, it may provide some inspirations of applications in information security in the near future.
	TO cite this article:LUO Yu-Pei,YANG Hua. Impact of potential barriers on soliton spectral tunneling in photonic crystal fiber[OL].[15 April 2019] http://en.paper.edu.cn/en_releasepaper/content/4748462


	10. All-Optical Format Conversion From PAM4 to QPSK Signal based on HNLF
	LI Qiankun,WANG Hongxiang
	Electrics, Communication and Autocontrol Technology 19 March 2019
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	Abstract:An optical network intermediate node scheme with format conversion of PAM4-to-QPSK signal is first proposed and simulated numerically. The input PAM4 signal is first converted into the two binary phase-shift keying(BPSK) tributaries based on optical nonlinearity and vector addition. The output quadrature phase-shift keying(QPSK) is generated through vector addition between two BPSK tributaries. One sub-channel BPSK tributary can be extracted from input PAM4 signal directly by using optical nonlinearity and vector superposition. When input PAM4 signal is pre-distorted to be the distorted PAM4 signal by self-phase modulation(SPM), another sub-channel BPSK tributary can be extracted from the distorted PAM4 signal by using optical nonlinearuty and vector superposition. For an input 10 Gb/s PAM4 with optical signal-to noise ratio(OSNR) of 30dB, the output QPSK gets 1.8% decrease in error vector amplitude(EVM), 3 dB receiver OSNR improvement at the bit error rate(BER) of 0.001 because of SPM-based amplitude regeneration. The proposed node scheme can be applied an all-optical interconnection node between different optical networks where different modulation formats are utilized individually.
	TO cite this article:LI Qiankun,WANG Hongxiang. All-Optical Format Conversion From PAM4 to QPSK Signal based on HNLF[OL].[19 March 2019] http://en.paper.edu.cn/en_releasepaper/content/4747400

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